US 385 in South Dakota


US 385
Get started Oelrichs
End Deadwood
Length 122 mi
Length 196 km
NebraskaHot Springs

Custer City

lead alto


US 385 is a US Highway in the US state of South Dakota. The road forms a north-south route through the southwest of the state, from the Nebraska border to Deadwood. US 385 is 196 kilometers long in South Dakota.

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Travel directions

The northern end of US 385.

US 385 in Nebraska comes from Chadron and is a divided highway from the border to Hill City. The divided highway continues via State Route 79 to Rapid City, the US 385 leads a little more west through the Wind Cave National Park and close to Mount Rushmore, and is therefore an important road for tourism. The route also leads through the Black Hills. At Deadwood, US 385 terminates at US 85.

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US 385 on the border between Nebraska and South Dakota.

US 385 was added to the network in 1958. Beginning in 1997, US 385 south of Rapid City was doubled into a 2×2 divided highway called the Heartland Expressway. The route was doubled to 2×2 lanes south of Hot Springs in 2010-2011, despite the low traffic volumes on this stretch. The opening of the last double-lane section of the Heartland Expressway in South Dakota followed on August 28, 2014.

Traffic intensities

1,700 to 2,400 vehicles drive daily on the 2×2 section south of Hot Springs and 1,000 to 2,000 vehicles as far as Custer City. The rest up to Deadwood has 1,300 to 1,600 vehicles.

US 385 in South Dakota